1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /*
3 * shash interface to the generic implementation of BLAKE2s
4 *
5 * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
6 */
7
8 #include <crypto/internal/blake2s.h>
9 #include <crypto/internal/hash.h>
10
11 #include <linux/types.h>
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14
crypto_blake2s_update_generic(struct shash_desc * desc,const u8 * in,unsigned int inlen)15 static int crypto_blake2s_update_generic(struct shash_desc *desc,
16 const u8 *in, unsigned int inlen)
17 {
18 return crypto_blake2s_update(desc, in, inlen, blake2s_compress_generic);
19 }
20
crypto_blake2s_final_generic(struct shash_desc * desc,u8 * out)21 static int crypto_blake2s_final_generic(struct shash_desc *desc, u8 *out)
22 {
23 return crypto_blake2s_final(desc, out, blake2s_compress_generic);
24 }
25
26 #define BLAKE2S_ALG(name, driver_name, digest_size) \
27 { \
28 .base.cra_name = name, \
29 .base.cra_driver_name = driver_name, \
30 .base.cra_priority = 100, \
31 .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, \
32 .base.cra_blocksize = BLAKE2S_BLOCK_SIZE, \
33 .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx), \
34 .base.cra_module = THIS_MODULE, \
35 .digestsize = digest_size, \
36 .setkey = crypto_blake2s_setkey, \
37 .init = crypto_blake2s_init, \
38 .update = crypto_blake2s_update_generic, \
39 .final = crypto_blake2s_final_generic, \
40 .descsize = sizeof(struct blake2s_state), \
41 }
42
43 static struct shash_alg blake2s_algs[] = {
44 BLAKE2S_ALG("blake2s-128", "blake2s-128-generic",
45 BLAKE2S_128_HASH_SIZE),
46 BLAKE2S_ALG("blake2s-160", "blake2s-160-generic",
47 BLAKE2S_160_HASH_SIZE),
48 BLAKE2S_ALG("blake2s-224", "blake2s-224-generic",
49 BLAKE2S_224_HASH_SIZE),
50 BLAKE2S_ALG("blake2s-256", "blake2s-256-generic",
51 BLAKE2S_256_HASH_SIZE),
52 };
53
blake2s_mod_init(void)54 static int __init blake2s_mod_init(void)
55 {
56 return crypto_register_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
57 }
58
blake2s_mod_exit(void)59 static void __exit blake2s_mod_exit(void)
60 {
61 crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
62 }
63
64 subsys_initcall(blake2s_mod_init);
65 module_exit(blake2s_mod_exit);
66
67 MODULE_ALIAS_CRYPTO("blake2s-128");
68 MODULE_ALIAS_CRYPTO("blake2s-128-generic");
69 MODULE_ALIAS_CRYPTO("blake2s-160");
70 MODULE_ALIAS_CRYPTO("blake2s-160-generic");
71 MODULE_ALIAS_CRYPTO("blake2s-224");
72 MODULE_ALIAS_CRYPTO("blake2s-224-generic");
73 MODULE_ALIAS_CRYPTO("blake2s-256");
74 MODULE_ALIAS_CRYPTO("blake2s-256-generic");
75 MODULE_LICENSE("GPL v2");
76
